Scale of an eel for age determination
Lifting a fish trap

Lake and river fishery

Lakes and rivers are used in all sorts of ways in Germany: for energy generation, commercial shipping, water supplies, regulating water levels or fishing in commercial terms – or for swimming, boating and angling for recreational purposes – but also for nature conservation and the protection of species. The use of these inland waters results in risks or restrictions, but at least consequences for the lakes and rivers themselves and the fish living in them.

The field of work “fish and aquatic ecology” deals with the needs of fish in terms of their habitat, their behaviour, their development and their interaction with their environment. The aim of this work is to protect and promote inland waters and fish communities as the basis for commercial fishing.

The field of work also deals with issues related to developing fish stocks and using fish from artificially created aquatic environments. This particularly involves the many open cast mining lakes that cover significant areas of the German states of Brandenburg, Saxony-Anhalt and Saxony. Surveys for the individual lakes take into account the living conditions for fish and are used to derive the guiding principle for fisheries-related work and the fish habitat and prepare the necessary fisheries-related measures to establish fish stocks suitable for the lake or river and their future use.